Google People API Javascript -将GivenName存储为变量

<script src="https://apis.google.com/js/api.js"></script>

gapi.load('client:auth2', initClient);

function initClient() {
  gapi.client.init({
    apiKey: 'YOUR_API_KEY',
    clientId: 'YOUR_CLIENT_ID',
    discoveryDocs: ['https://people.googleapis.com/$discovery/rest?version=v1'],
    scope: 'https://www.googleapis.com/auth/contacts'
  }).then(function () {
    // API初始化成功
    // 可以开始使用People API
  }, function (error) {
    // API初始化失败
    console.log(error);
  });
}

function getContacts() {
  gapi.client.people.people.connections.list({
    resourceName: 'people/me',
    pageSize: 10,
    personFields: 'names'
  }).then(function (response) {
    var contacts = response.result.connections;
    var givenName = contacts[0].names[0].givenName;
    console.log('Given Name:', givenName);
  }, function (error) {
    console.log(error);
  });
}